Retail electricity customers: commercial: Illinois (Units) - United States - EIA - Monthly
This series is part of the dataset: US retail electricity prices (EIA)
Download Full Dataset (.xlsx)Latest updates. In Illinois, the number of retail electricity customers in the commercial sector stood at 644,596 in July 2026, versus 644,972 in the previous month. This marks a reduction of 0.1 percent.
Sample. In this monthly series, there are 235 data points in total. The series covers the period going from January 2007 to July 2026.
History. Here's a snapshot of a few statistics calculated on the full sample: the customer count had an average value of 606,455; it hit a trough of 510,532 in January 2007; it attained a maximum of 648,402 in December 2025.
Latest values
| Date | Value - Units |
|---|---|
| 2026-05-31 | 644,887 |
| 2026-06-30 | 644,972 |
| 2026-07-31 | 644,596 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Retail electricity customer count for the commercial sector in Illinois |
| Country | United States |
| Economic concept | Stock |
| Data type | Quantity |
| Seasonally adjusted | No |
| Deflation method | Current prices |
| Rescaling | None |
| Measure type | Level |
| Frequency | Monthly |
| Unit | Units |
| Source | U.S. Energy Information Administration (EIA) |
| Source type | Government agency |
| Data licence | Public domain |
| Other information | Not available |
| FSR temporal aggregation code | LM1 |
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